According to the classification of perfumers, various smells in nature can be divided into four kinds: fruit fragrance, plant fragrance, powder fragrance and honey sweet fragrance. Everyone has their own favorite smell. Is there a fragrance that everyone loves? The answer is yes. It is generally believed that the fragrance of some fruits from the cold temperate zone to the subtropical zone, such as apples, pears, sweet oranges, lemons, etc., can be loved by most people, and the use of these fragrances in public will generally not cause dissatisfaction. There are many tropical fruits, but they are not delicious. The taste of durian, mango, pineapple, guava, litchi, etc. It is loved and feared by some people, so it is best not to use it in public places.

The toilet is the place where people most urgently need to use incense. It is best to cover up the smell of grass or fruit in the bathroom. The grassy smell of laundry soap effectively masks the smell of feces and urine. The best results are peppermint and spearmint, which belong to grass spices. Cologne can also be used to deodorize and perfume toilets. A bottle of cologne can last for several months. Most perfumes (high-grade, medium-grade or low-grade) are not suitable for toilet use, because they contain some "animal fragrance" spices (such as musk) to a certain extent, which will aggravate the smell of feces and urine, and the higher the grade, the more animal fragrance they contain.

In fact, I can also solve the odor problem in the bathroom myself. Put a cup or a small bowl containing citric acid (sold in chemical stores) on the small shelf in the bathroom, and put some soap (without wrapping paper) or laundry soap next to the cup. Acid can absorb and neutralize ammonia and trimethylamine, and the free alkali of soap can absorb hydrogen sulfide, which can effectively remove the main odor components in the bathroom.